/*Pokemon Universe MMORPG
Copyright (C) 2010 the Pokemon Universe Authors

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.*/
package putools

// Iabs returns the absolute value of x.
//
// Special cases are:
//		Iabs(+Inf) = +Inf
//		Iabs(-Inf) = +Inf
//		Iabs(NaN)  = NaN
func Iabs(x int) int {
	switch {
	case x < 0:
		return -x
	case x == 0:
		return 0
	}

	return x
}
